Famed activist short seller Carson Block pulls no punches as he takes aim at Canada, Jack Ma and the U.S. pharmaceutical industry in this interview with Brian Price. Block, who serves as CIO of Muddy Waters Research, discusses the red flags he looks for when hunting for fraud, and reveals which companies are currently on his radar. Carson also touches on how his line of work has led to both tremendous success and death threats. Filmed December 4, 2018 in New York.